Heater housing



FIG. 1 is a perspective view from the top-right of the heater housing;

FIG. 2 is a back view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view from the top-left thereof.

The broken lines shown in the drawings are for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a heater housing, as shown and described. 